Ingot-mold.



m0. 707,208. I PATENTED APR. 12, 1904. G. A. LEIBMAN.

INGOT MOLD.

APPLIOATIOI? FILED AUG. 14, 1903.

H0 MODEL.

V y tad 1600M v A Z w are. verses.

Eateiited April is, idea.

arena Grains CHARLES A. LEIBMAN, OF NEW YORK,

N. Y., ASSIGNUR T9 E. P. BEECH- HIi-LM AND COMPANY, OF NEW YORK, ll. 5., A FEM.

' mesmerizin SPECEHGAIIQE forming part of Letters Extent No. 751%528, dated April 12, 39%- Application filed august 14, 1803. Serial Ho. 169,432. (ilc medal.)

To all whom it may concern..- Be it known that I, Ci-LaRLns A. Lnrniaau, a citizen of the United States, residing in the borough of Brooklyn,city of New York, county of Kings, and State of New York, have invented an improvement in ingot-Molds, of which the following is a specification. My invention relates to molds particularly adapted for jewelers use in casting ingots of gold, silver, and other metals. Heretofore in instruments of this class molds have been employed whose matrices are made in halves, one oi which is lined and'the other slidably adjustable in relation thereto,so that differentsized ingots could be cast in the same mold, a clamp being used to secure the halves of the matrices together in any desired position. As commonly constructed this clamp device is fixed so that in but one position is the pressure exerted on the adjustable half of the matrix applied centrally, with the result that in this position only is the pressure equal on both sides of the matrix, and consequently in any other position the joint on one side is tighter than that on the other; and the object of my invention is to obviate this difiiculty and-produce an ingot-mold in which the pressure exerted on the adjustable half'of the matrix, re-

gardless of its slidable position, may be applied centrally at all times in order that the joints on both sides of the matrix may be equally tight in all positions.

In carrying out my invention Iiemploy a base, a matrix made in halves, one of which is secured'to the base and the other slidably adjustable on the base, aspost extending parallel with the matrix members from one edge of the base to a point more than half-way across the same and provided with a horizontally disposed slot and adjacent dovetail groove, a tapered .nut in said groove, and a clamp-screw passing through said slot into and through said nut and adapted at its end to bear against a shoulder on the adjustable half of said matrix, the said screw and nut being slidably adjustable in said slot and groove in order that the pressure exerted by the screw on the adjustable half of the matrix may be applied centrallyend equally in any' position on both edges of the matrix. v 4

In the drawings, Figure l is an elevation of my improved ingot-mold. Fig. 2 isa verf tical central section of the same. Fig? 3 is a sectional plan of the parts in the position shown in Figs. 1 and 2, and- Fig. 4; is 2. sec tional plan ofthe parts in the position for casting a small ingot.

a represents a base of any suitable material, and preferably rectangular in plan...-

b crepresent L-shaped halves of a media of corresponding area, the half 5 beingprovided with a flange 2 and secured to the base a by one or more screws 3 from the same or opposite directions, and the half a is provided with a shoulder a and adapted to be siidaoly adjustable on the base a, so a to vary the internal aperture within the limits of the mold to receive the molten metal according to the size. ingot desired to be cast.

A post d, having end strengthening-flanges 4, is preferably integral with the base a and extends from one side". of the base to a point more than half-way across the same and is parallel with. the halves} c of the matrix. The upper end of the post d is provided with a slot 5 and an adjacent dovetail the side next to the adjustable -member of the matrix and in line with the slot.

groove 6 in" A tapered nut e is fitted in thegroove 6; and aclanip-- screw f is Kissed through the slot 5 into and through the nut e, and the end thereof is adapted to onthe adjustable member of able in the said groove bear against the said-shoulders,

the matrix the said nut e and screw f being slidably ad ust..

6 and slot 5. It will .5,

now be apparent that inauy position in which the adjustable half a of the matrix may he placed for casting an ingot of desired size the nut e and clamp-screw f may be adjusted to the position for applying the latter to the shoulder of the adjustable half of the matrix at a point central of and midway between the vertical sides of the ingot to be cast in order that the pressureon bcthedges of the matrix may be the same, making both joints equally tight. The upper end of the nostri is moiined towel-d the inoid suficientiy to be oer-- silei Wit-hitheieoe of the shoulder 0', so, t'net soreezf, pass ng st r ght angies through 1e. inclined portion or the post (2 and beering on the shoulder a, is at an inclination with the base end else exerts e downward pressure on the edjnstabie member 0 of the matrix, foneii'igv the lower end of the some against its seat on the hose and causing a tight joint.

' E eleim as my invention Ii. An ingot-mold comprising e base, e twopert matrix, one member being fixes to said base and the other memberslidebly adjustable thereon, e post upon seid base and adjustable means movable laterally on the post for olemping the movable member of the matrix sothat in any position the pressure on both edges of the matrix is the same, making both joints equally tight.

2. An ingot-moid comprising a base, a twopert met in; one member of which is fixed to the base and the other member slidably adjustable thereon, a post upon said base and extending paraliel with the matrix members from one edge of the base to a point more than half-- senses e post upon said base and extending parallel with the matrix members from one edge of the base to a point more than half-way across the same and having a slot end at dovetail groove in its upper end arranged horizontally, a tapered nut in said groove and e clamp-screw passing through said slot and into and through said not, whereby the said screw and nut may be moved and adjusted to contact centrally with the shoulder of the adjustable member of the matrix in any position to make the joints at both ends 0f the matrix oqualiy tight.

4. An ingot-mold comprising a base, a twopert matrix, one member of which is fixed to the base and the other member siidably adjustable thereon, a post upon said base and extending parallel with the matrix members from one edge of the base to a point more than halfway across the same, and having as slot and a dovetail groove in its upper end arranged horizontally, e tapered nut in said groove, and e clamp-screw passing through said slotand into and through said nut whereby the said screw and but may be moved and ed j listed to contact centrally with the shoulder of the adjustable member of the matrix in any position to make the joints at both ends of the matrix equally tight.

Signed by me this 12th day of AugustJQOB. 

